JI8AQC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: QN12

Receiver-side FT8 activity involving JI8AQC, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-07.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 6 FT8 messages attributed to JI8AQC as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.

Overview

6
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-06-07 19:09 UTC

Observed FT8 message patterns

Attributed sample
6 messages
Active dates
1 UTC dates
Estimated median S/N
-3 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 6.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JI8AQC in decoded directed-looking exchanges:

Most frequent locator attributed to JI8AQC

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
QN12 · 4 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,258 km (approx.)
Last such locator decoded
2026-06-07 19:05 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandJI8AQC S/NCounterpartCounterpart S/NMsgsCapture
09-19 20:09 80m - / - UA3GX +2 / - 3 Partial capture
09-13 19:30 40m - / -15 EI4KF +9 / - 3 Partial capture
09-13 19:30 40m - / - LB7ZG +4 / - 3 Partial capture
09-13 19:26 40m - / -9 UT3UQJ -6 / - 5 ✓ Closing fragment
09-13 19:25 40m - / -15 4O4DB -8 / - 2 ✓ Closing fragment
09-12 18:59 80m - / - RK1AS -2 / - 5 Partial capture
09-12 18:57 80m - / - IT9VCE -6 / - 2 Partial capture
09-12 18:57 80m - / - IZ0RVI +10 / - 7 Partial capture
08-27 11:56 10m - / -6 ON7HM -20 / - 3 Partial capture
07-07 21:00 20m - / -4 F5RRS -5 / - 3 ✓ Closing fragment
07-07 21:00 20m - / - SP6AXW -11 / - 5 Partial capture
07-07 20:59 20m - / - DM5WGL +1 / - 9 Partial capture
07-07 20:58 20m - / - DL5BTE 0 / - 2 Partial capture
07-07 20:56 20m - / -15 DF3VG +2 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m
UTC    dB Audio  Message
185800 +10 1004  JI8AQC IZ0RVI JN62 (x3)
185930  -4 2887  JI8AQC RK1AS KP40
185930 +11 1004  JI8AQC IZ0RVI JN62
190000  -5 2887  JI8AQC RK1AS KP40
190000 +12 1004  JI8AQC IZ0RVI JN62
190030  -3 2887  JI8AQC RK1AS KP40 (x3)
200130  -9 2397  JI8AQC UX1AA KO70
200430 -14 1013  JI8AQC UN7GBX MN83
200900  +5  685  JI8AQC UA3GX KO92 (x3)
40m
UTC    dB Audio  Message
192500  -9 1248  JI8AQC 4O4DB -15 (x2)
192600  -6 1106  JI8AQC UT3UQJ KO50 (x5)
193000  +2 2918  JI8AQC LB7ZG JP50
193000 +10  466  JI8AQC EI4KF IO54
193030  -7 2238  JI8AQC RV6HEG LN14
193030  +6 2918  JI8AQC LB7ZG JP50
193030  +9  466  JI8AQC EI4KF -15
193030  -5 1247  JI8AQC DJ0MAB JN49
193100  +3 2918  JI8AQC LB7ZG JP50
193100  +7  466  JI8AQC EI4KF -15
10m
UTC    dB Audio  Message
115600 -21 2035  JI8AQC ON7HM -06 (x3)
20m
UTC    dB Audio  Message
210045  -3  753  JI8AQC DM5WGL JO62
210115  -9 2308  JI8AQC SP6AXW JO80
210115  -8 1815  JI8AQC F5RRS R-04
210115  +0  752  JI8AQC DM5WGL JO62
210145 -10 2308  JI8AQC SP6AXW JO80
210145  +2 1815  JI8AQC F5RRS 73
210145  +0  752  JI8AQC DM5WGL JO62
210215 -14 2308  JI8AQC SP6AXW JO80
210215  +5  752  JI8AQC DM5WGL JO62
210245 -11 2308  JI8AQC SP6AXW JO80
210245  +4  752  JI8AQC DM5WGL JO62 (x4)
213415 -20 1475  JI8AQC RA6OF KN87

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